Brother Cartridge Refill Tools with Luer Thread, 2 sizes for LC105, LC203 for use with syringe

I bought a refill tool off eBay for LC103, LC101, LC03, LC105, LC107, LC109 Brother cartridges. I then copied it into CAD in case I lost it later. I modified the design to work with LC203 and similar cartridges, as they use a slightly different air-hole design. As I encounter new brother cartridges, I will modify the design to work with them too.

Refill cartridges with caution. When not done properly it can be messy and you must be careful to not destroy the air hole gasket during the refilling process. There are many videos online using this tool. You also will need a chip resetter to reset the ink level IC if your cartridge has it. I found a few of them on eBay but AliExpress has the most variety of them for cheap that I've seen. It just takes a while to ship. if you have an old cartridge like LC61, it will auto-detect ink level, and no need to reset any chip as there isn't an onboard IC. The printer auto updates ink level (if only we had that on every printer!!)